EP2272659A2 - Mandrin pour la production d'un conteneur doté d'une forme comprimée dans sa hauteur - Google Patents

Mandrin pour la production d'un conteneur doté d'une forme comprimée dans sa hauteur Download PDF

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Publication number
EP2272659A2
EP2272659A2 EP10006949A EP10006949A EP2272659A2 EP 2272659 A2 EP2272659 A2 EP 2272659A2 EP 10006949 A EP10006949 A EP 10006949A EP 10006949 A EP10006949 A EP 10006949A EP 2272659 A2 EP2272659 A2 EP 2272659A2
Authority
EP
European Patent Office
Prior art keywords
mandrel
container
sidewall
shaping
vacuum
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP10006949A
Other languages
German (de)
English (en)
Other versions
EP2272659A3 (fr
Inventor
Neil Marshall
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huhtamaki Oyj
Original Assignee
Huhtamaki Oyj
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE200910026108 external-priority patent/DE102009026108A1/de
Priority claimed from DE102009044772A external-priority patent/DE102009044772A1/de
Priority claimed from DE201010016390 external-priority patent/DE102010016390A1/de
Application filed by Huhtamaki Oyj filed Critical Huhtamaki Oyj
Priority to EP10006949A priority Critical patent/EP2272659A3/fr
Priority to PCT/EP2011/000027 priority patent/WO2011124288A1/fr
Publication of EP2272659A2 publication Critical patent/EP2272659A2/fr
Publication of EP2272659A3 publication Critical patent/EP2272659A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
    • B65D85/804—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package
    • B65D85/816—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package into which liquid is added and the resulting preparation is retained, e.g. cups preloaded with powder or dehydrated food
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
    • B65D1/22—Boxes or like containers with side walls of substantial depth for enclosing contents
    • B65D1/26—Thin-walled containers, e.g. formed by deep-drawing operations
    • B65D1/265—Drinking cups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/38—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation
    • B65D81/3876—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents with thermal insulation insulating sleeves or jackets for cans, bottles, barrels, etc.
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2105/00—Rigid or semi-rigid containers made by assembling separate sheets, blanks or webs
    • B31B2105/002—Making boxes characterised by the shape of the blanks from which they are formed
    • B31B2105/0022—Making boxes from tubular webs or blanks, e.g. with separate bottoms, including tube or bottom forming operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2110/00—Shape of rigid or semi-rigid containers
    • B31B2110/10—Shape of rigid or semi-rigid containers having a cross section of varying size or shape, e.g. conical or pyramidal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2110/00—Shape of rigid or semi-rigid containers
    • B31B2110/20—Shape of rigid or semi-rigid containers having a curved cross section, e.g. circular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2120/00—Construction of rigid or semi-rigid containers
    • B31B2120/50—Construction of rigid or semi-rigid containers covered or externally reinforced
    • B31B2120/501—Construction of rigid or semi-rigid containers covered or externally reinforced by applying wrapping material only on the side wall part of a box
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2120/00—Construction of rigid or semi-rigid containers
    • B31B2120/70—Construction of rigid or semi-rigid containers having corrugated or pleated walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
    • B31B50/26—Folding sheets, blanks or webs
    • B31B50/28—Folding sheets, blanks or webs around mandrels, e.g. for forming bottoms

Definitions

  • the present invention relates to a mandrel for the shaping of a flat segment into a first sidewall of a container.
  • mandrels are known from the state of the art and can be used to form flat sidewall segments into a plane sidewall of a container.
  • the mandrels according to the state of the art are not suitable to produce sidewalls of a container with compressed embossments.
  • a mandrel for the shaping of a flat sidewall-segment into the first sidewall of a container which comprises a first part and a second part, whereas the second part is axially displaceable relative to the first part to alter the mandrel from an extended length to a reduced length and vice versa.
  • the present invention relates to a mandrel for the shaping of a flat sidewall segment into the first sidewall of a container.
  • the container is a cup in which beverages, especially hot beverages such as coffee or tea or food, especially soup, can be served.
  • This container is preferably made of paper, thick paper, cardboard, fiber-materials, plastic-materials, materials made from renewable and/or biodegradable raw materials or a combination thereof.
  • the container according to the present invention comprises a first sidewall which is preferably conically shaped and which more preferably has at its upper end a rolled rim.
  • the first sidewall is made from a flat segment, preferably a flat cardboard segment, which is subsequently formed, preferably rolled, into its, preferably conically, shape, whereas the ends of the sidewall segment are then attached, preferably glued or sealed to each other.
  • the sidewall is connected to a base in order to close the container at the bottom.
  • the base is preferably a separate part which is attached, more preferably glued or heat sealed to the lower end of the sidewall container.
  • the first sidewall of the container comprises at least a first shaping which extends at least partially, preferably entirely around the circumference of the first sidewall.
  • This shaping can be directed inwardly and/or outwardly, i.e. towards the content of the container and/or away from the content of the container.
  • This shaping can be produced by any technique known by a person skilled in the art, e.g. by folding or any other method of plastic deformation.
  • the shaping is inserted into the segment, preferably the cardboard segment, before it is formed, e.g. rolled around the mandrel into the final shape of the sidewall.
  • the shaping is an embossment which is produced for example by applying locally pressure to the sidewall and deforming the material of the sidewall plastically.
  • the shaping can have any form known by a person skilled in the art. However it should be compressible, at least partially, especially in case an axial-force preferably axial pressure is applied to the sidewall.
  • the shaping is U-shaped or has at least partially the shape of a segment of a circle.
  • the sidewall is reduced in its height. Due to the compression of the shaping in its height, preferably the radial extension of the shaping increases at least partially. More preferably, the compression is elastic, i.e. as soon as the deformation force is removed, the shaping retries to resume, at least partially, its original shape.
  • the deformed shaping functions as a spring.
  • the mandrel comprises internal means, preferably vacuum to maintain the mandrel temporarily in its collapsed state. After the removal of the compression force applied to the sidewall and/or the base of the container, which also collapses the mandrel from an extended to a reduced length, these internal means assure, that the mandrel does not undesirably resumes its extended shape.
  • the shaping of the flat sidewall segment into the first sidewall is made by means of a mandrel.
  • the outer surface of the mandrel coincides with the desired form of the container.
  • the mandrel has, at least partially, the shape of a cone.
  • the mandrel particularly the part of the mandrel, around which the flat sidewall segment is wrapped, comprises at least a first part and a second part, whereas the second part is axially displaceable relatively to the first part to alter the mandrel from an extended length to a reduced length and vice versa, i.e. the mandrel has a longitudinal-, preferably a middle-axis, along which, the second part is displaced relatively to the first part.
  • the mandrel comprises a third part which is axially displaceable relative to the first part and/or the second part to alter the mandrel from an extended to a reduced length and vice versa.
  • the displacement of the third part is at least temporarily independent from the displacement of the second part.
  • the displacement of the third part takes place prior to the displacement of the second part.
  • the mandrel comprises means, preferably vacuum-means to improve the frictional connection between the mandrel and the container and/or to draw the container towards the mandrel.
  • means preferably vacuum-means to improve the frictional connection between the mandrel and the container and/or to draw the container towards the mandrel.
  • the means to improve the frictional connection between the mandrel and the container and the internal means, which maintain the mandrel temporarily in its collapsed state are connected to one vacuum source.
  • the mandrel comprises means, which preloads the mandrel into its extended state, i.e. which force the second and/or third part of the mandrel away from the first part and/or away from each other under the formation of a gap, respectively.
  • This means is preferably a spring.
  • the mandrel comprises means to eject the container.
  • these means are pressurized air, which is fed through the same channels as the vacuum is drawn. The pressurized air pushes the container away from the mandrel.
  • the mandrel is conically shaped.
  • the mandrel comprises means to limit the radial extension of a compressed shaping, especially a shaping, that is directed inwardly.
  • Figure 1 shows the inventive mandrel 6, which comprises two fixation means 13, here holes, which allows the fixation of the mandrel for example to a frame.
  • the inventive mandrel 6 comprises a first, preferably stationary, part 7, a second part 8 and a third part 9.
  • the second and/or the third part are at least temporarily independently axially displaceable relative to the first part 7, i.e. the third part is displaceable relative to the second part 8 and the second part is displaceable relative to the first part, preferably together with the third part 9. Due to the displacement of the third part 9 relative to the second part 8, gap 19 is closed and due to the axial movement of the second part 8 relative to the first part 7, the second gap 20 is closed.
  • the relative movement of the third part relative to the second part and the movement of the second part relative to the first part allow the compression of shapings, preferably embossments in the sidewall of the container whereas the height of the gap 19 and 20 determines the degree of compression of the shapings.
  • the first gap 19 has a smaller height than the second gap 20.
  • the shaping in the vicinity of gap 19 will be less compressed than the shaping around the second gap 20.
  • the second- and/or the third part can be axially displaced independent from each other, whereas preferably the third part is firstly displaced relative to the second part and then the third part and the second part are jointly displaced relative to the first part. Force F takes care of the axial displacement of the second and third part.
  • This force F can impact directly on the third part of the mandrel and/or can be transferred via the base and/or the sidewall to the mandrel.
  • the mandrel comprises internal means 12 which are explained in more detail according to figures 3a and 3b .
  • the shapings 5, 15 have been compressed and the mandrel has been collapsed, it is desirable to remove the compression force F from the container. Since, as already mentioned above, the compressed shapings 5,15 have a spring like behavior i.e. they tend to resume their uncompressed shape after force F has been removed, means to maintain the shapings in their compressed state have to be provided.
  • vacuum means which have a vacuum source and inlet means 10.1, here one or more channels.
  • the vacuum sucks the sidewall 2 and/or the bottom 3 towards the mandrel and thus assures, that the container does not move unintentionally relative to the mandrel.
  • Figure 2 shows the mandrel according to figure 1 with a container placed around it.
  • the container comprises a sidewall 2, which is wrapped around the mandrel and which has a shape that coincides with the outer surface of the mandrel.
  • the sidewall 2 comprises a rim 4 which is placed against a holding means 21 of the mandrel 6.
  • the sidewall comprises first embossment 5 which is located at the height of gap 19 and a second embossment 15 which is placed at the same height as the second gap 20.
  • Figure 2 shows the embossments 5, 15 of the cup in their uncompressed state, i.e. with a relatively large height h.
  • a force F is applied to the bottom of the cup.
  • This force firstly compresses the first shaping 5 while at least essentially simultaneously displacing the third part relative to the second part and thereby closing gap 19.
  • vacuum is drawn via the vacuum means 10.1. This assures, that the sidewall 2 and the bottom 3 of the container 1 are in very close contact with the surface of the mandrel and that the frictional force between the inner surface of the cup and the outer surface of the mandrel is increased so that the container does not move relative to the mandrel. Additionally, this vacuum assures that, once one gap 19, 20 has been closed, it maintains in this closed state.
  • the third part 9 and the second part 8 are jointly moved axially relative to the first part 7.
  • the second gap 20 is closed and thereby the second shaping 15 is compressed, i.e. reduced in its height h.
  • means 12 here vacuum means, are provided to maintain the gap 20 in its closed state.
  • the vacuum 10 assures that, even in case force F is removed, the mandrel as well as the embossments of the sidewall of the container 1 remains in their compressed state.
  • Figure 3a and 3b show the means to maintain gap 20 in its closed state.
  • This means is essentially a vacuum channel 12 and in inlay 14.
  • Figure 3a shows gap 20 in its extended state.
  • Figure 3b shows gap 20 in its closed state.
  • the inlay 14 seals the area around the vacuum channel 12 and thus a force is created that sucks the second part 8 towards the first part 7 so that the gap 20 is not unintentionally increased, even though spring 11 forces the part 7, 8 apart.
  • the gap is automatically increased by the spring 11 to an extent as depicted in Fig. 3a .
  • Figure 4 shows an embodiment of a container, here a cup, that can be produced with the inventive mandrel 6.
  • the cup comprises a first sidewall 2 which has two shapings 5, 15 at different height and at its upper end a rolled rim 4.
  • the opposite end of sidewall 2 is connected to a base 3.
  • a second sidewall is utilized which is connected preferably glued or sealed in the connection areas 17, 18 to the first sidewall. Due to this second sidewall 16 shapings 5, 15 cannot resume their original uncompressed state.
  • the second sidewall 16 is wrapped around and attached to the first sidewall after the shapings 5, 15 have been compressed and after the compression force and especially the means that utilize the compression form has been removed.
  • the mandrel and the container are then held in their compressed state by means of vacuum. Since the means that utilize the compression force F are then removed, the surfaces to attach the second sidewall to the first sidewall are accessible and the second sidewall can be wrapped around and glued to the first sidewall in the connection areas 17, 18. As soon as the second sidewall is rigidly connected to the first sidewall, the container is removed from the mandrel. This is utilized by compressed air, which is provided via the same channels as the vacuum.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ceramic Engineering (AREA)
  • Making Paper Articles (AREA)
EP10006949A 2009-07-06 2010-07-06 Mandrin pour la production d'un conteneur doté d'une forme comprimée dans sa hauteur Withdrawn EP2272659A3 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP10006949A EP2272659A3 (fr) 2009-07-06 2010-07-06 Mandrin pour la production d'un conteneur doté d'une forme comprimée dans sa hauteur
PCT/EP2011/000027 WO2011124288A1 (fr) 2010-04-09 2011-01-06 Mandrin pour produire un récipient de forme comprimée en hauteur

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE200910026108 DE102009026108A1 (de) 2009-07-06 2009-07-06 Verfahren zur Herstellung eines Bechers und Becher
DE102009044772A DE102009044772A1 (de) 2009-12-04 2009-12-04 Becher und Verfahren zur Herstellung
DE201010016390 DE102010016390A1 (de) 2010-04-09 2010-04-09 Verpackung und Verfahren zur Herstellung der Verpackung
EP10006949A EP2272659A3 (fr) 2009-07-06 2010-07-06 Mandrin pour la production d'un conteneur doté d'une forme comprimée dans sa hauteur

Publications (2)

Publication Number Publication Date
EP2272659A2 true EP2272659A2 (fr) 2011-01-12
EP2272659A3 EP2272659A3 (fr) 2011-05-25

Family

ID=43807070

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10006949A Withdrawn EP2272659A3 (fr) 2009-07-06 2010-07-06 Mandrin pour la production d'un conteneur doté d'une forme comprimée dans sa hauteur

Country Status (2)

Country Link
EP (1) EP2272659A3 (fr)
WO (1) WO2011124288A1 (fr)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2104535A (en) * 1936-05-09 1938-01-04 Dixie Vortex Co Method of and process for forming paper cups
DE644939C (de) * 1936-07-17 1937-05-18 Fr Hesser Maschinenfabrik Akt Falzdorn fuer Beutelherstellungsvorrichtungen
US3250186A (en) * 1962-07-27 1966-05-10 Reynolds Metals Co Method and apparatus for making frusto-conical label constructions for bottles and the like

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Also Published As

Publication number Publication date
EP2272659A3 (fr) 2011-05-25
WO2011124288A1 (fr) 2011-10-13

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